Most concepts to characterize crack propagation were developed for elastic materials. When applying these methods to elastomers, the question is how the inherent energy dissipation of the material affects the cracking behavior. This contribution presents a numerical analysis of crack growth in natural rubber taking energy dissipation due to the visco-elastic material behavior into account. For this purpose, experimental tests were first carried out under different load conditions to parameterize a Prony series as well as a Bergström–Boyce model with the results. The parameterized Prony series was then used to perform numerical investigations with respect to the cracking behavior. Using the FE-software system ANSYS and the concept of material forces, the influence and proportion of the dissipative components were discussed.

表征裂纹扩展的大多数概念是针对弹性材料开发的。当将这些方法应用于弹性体时，问题是材料的固有能量耗散如何影响开裂行为。该贡献提供了考虑到由于粘弹材料行为而导致的能量耗散的天然橡胶中裂纹扩展的数值分析。为此，首先在不同的负载条件下进行实验测试，以参数化Prony系列以及带有结果的Bergström-Boyce模型。然后使用参数化的Prony系列进行关于开裂行为的数值研究。利用有限元软件系统ANSYS和材料力的概念，讨论了耗散分量的影响和比例。